A veritable handful of professionals have tipped us off by listing their job titles on LinkedIn, which Twitter user Supererogatory first broadcast. According to the professional networking site, the following people are working on the next Xbox:

Jeff Faulkner is the “Xbox Next Gen Creative Director,” Jonathan Harris, a senior creative director for Xbox says he is working on “designing the next generation of entertainment,” and Joe Langevin is an Xbox hardware intern who’s job involves developing “high speed data buses to prevent electromagnetic interference in next-gen devices.” Patrick Corrigan, who works in visual design and branding, is an ex-Microsoft employee who says he was formerly “providing groundwork and integration for branding elements for next-gen Xbox on all forms of media. Ranging from print to UI across future releases of the Xbox platform.”

All these job positions and descriptions were removed as of press time.

Microsoft’s been cagey about “Xbox 720” details, although sales numbers would indicate the company is in no hurry to produce another console. This past summer we heard the Xbox 360 was only halfway through its life cycle, which isn’t terribly clear but doesn’t exactly sound like an update is on the horizon.

An obscure leak of sorts in March revealed close to nothing except that new hardware could be on the way for 2015. And given how long these things are in development, the LinkedIn listings don’t necessarily indicate we’ll see the next-gen console at 2012. It does however mean one is in the works.